Bring a large pot of heavily salted water to a boil. Add macaroni and cook according to package directions. Drain and rinse with cold water until completely cool. Set aside.
In a separate small pot, bring 3 inches water to a boil. Prepare a bath of ice water. Gently lower in eggs and cook until hard boiled, 12 minutes. Remove with a slotted spoon and transfer to ice bath. Peel eggs and finely chop.
In a large mixing bowl, stir together yogurt, reserved pickle brine, mustard, vinegar, honey, and season with salt and pepper to taste.
Add drained macaroni to dressing, along with eggs, pickles, celery, onion, and parsley. Toss well to combine and serve at room temperature or allow to cool in the fridge.
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Notes
Storage: Store any leftovers in an airtight container in the fridge for up to 4 days.